Question

如何使用环回解码“Content-Encoding：gzip，gzip”？

我创建了rest连接器以从后面的api获取响应：“https://rest.cricketapi.com/rest/v2/match/dev_season_2014_q3/balls/?access_token= ***************************** ****”。

我提到了许多网站，特别是https://github.com/strongloop/loopback/issues/1551但我没有得到解决方案。以下是代码：

/server/datasources.json

    {
  "Datasource": {
    "host": "127.0.0.1",
    "port": 27017,
    "database": "dbname",
    "name": "dbname",
    "connector": "mongodb"
  },
  "cricketApi": {
    "name": "cricketApi",
    "baseURL": "https://rest.cricketapi.com/rest",
    "crud": false,
    "connector": "rest",
    "operations": [
      {
        "functions": {
          "auth": [
            "app_id"
          ]
        },
        "template": {
          "method": "POST",
          "url": "https://rest.cricketapi.com/rest/v2/auth/",
          "headers": {
            "accepts": "application/json",
            "content-type": "application/json"
          },
          "form": {
              "access_key": "*********",
              "secret_key": "**********",
              "app_id": "{^app_id}",
              "device_id": "********"
          }
        }
      },
      {
        "functions": {
          "ballbyball": [
            "access_token"
          ]
        },
        "template": {
          "method": "GET",
          "url": "https://rest.cricketapi.com/rest/v2/match/dev_season_2014_q3/balls/",
          "headers": {
            "accepts": "application/json",
            "content-type": "application/json"
          },
          "query": {
              "access_token": "{access_token}"
          }
        }
      },
      {
        "functions": {
          "getships": []
        },
        "template": {
          "method": "GET",
          "url": "http://swapi.co/api/starships/",
          "headers": {
            "accepts": "application/json",
            "content-type": "application/json"
          }
        }
      },
      {
        "functions": {
          "schedule": []
        },
        "template": {
          "method": "GET",
          "url": "https://rest.cricketapi.com/rest/v2/match/dev_season_2014_q3/balls/?access_token=*********",
          "headers": {
            "accepts": "application/json",
            "content-type": "application/json",
            "content-encoding": "gzip"
          }
        }
      }
    ]
  }
}

以下api正在运行但是压缩输出gzip：

{
    "functions": {
      "schedule": []
    },
    "template": {
      "method": "GET",
      "url": "https://rest.cricketapi.com/rest/v2/match/dev_season_2014_q3/balls/?access_token=2s151429438441649s961198289187901461",
      "headers": {
        "accepts": "application/json",
        "content-type": "application/json",
        "content-encoding": "gzip"
      }
    }
  }

它提供以下输出：

“” \ u001f \ B \ u00006yZ \ u0002Mo0 \ FJS \ u001f（萨夫\ u0018P \ u0014，Q莫耳濏ӤY\ u0018uX {HS \ u0014 | L +Cn1ĵK;E7ʦF\ TB \ U0001 \ t8nS \ u0016％） E ZX a \u0015 $ ٱ hse k v ＆gt; 7igu ）＃T } \u0003 \ ;; HMڀ\u0018˪ڮր\ F |; TUY @ \ u000f} \b�\\��\u0011\tC��\t)\u0016ED��\u0015�*\u0012Y\u001c�Ȩ�\u0007�J�ޞ�Lb\u0011�\u0010�:�8�r��qa\n�\u0011J�\u0010\u001b�\u0005)8\u0016�\u00178�\"°R�\u0011��\u0018�\"\u0013Z_\u0006\\�~�\b�\"N4Va(��\u0014ʂ�d*�3m��T�[�c�s�#�\u0005��2��p��\b\u0015�2c�3�ɂb%\"NM�\fU\f]N��z��6��\u000f~��m� JM; YQ＆GT; q d {c3iu \ u0017 \ [\ U0002 @릝\ NFU \ u0005 \ u001fzn;乌\ u000eh 5 \ u000fQ \ u001fV \u0000EӕphOO \ u0010 \˚F\ u0019ڱ\ n \ u000b /：\ u0007r \ u0001D \ BX \ u0006 / LB \ u0017 \ u0013N \ u0012 \ u003E \ u0015！ Q/ z +！Ӯ Ӯ ' \ u0012＆gt;o \u0001 u媷\u0015Ͳ \ u0007} |Y \ u0000z / M SMYݣ7 \ u001b9H = U \ {RB AU \ u000b}; YYS [\ r \ u0004I ޢ} F的 \ n \ u000f \ tHg8j} HRG \ u0000的| \u0017Cζ{P҄\ u0000Jur（P߅\ u0015（թ \ u001c \ FOD \吨/ LN \ u000foO \ u001e＆GT;〜* F3 ^ X \ u0005L \ u001dcoys \ u001c | A和d \ u0004p_ \ u001e'b＆GT; b; CϳGG7'8β\ u001fOy \ u001a 7u ; / {\ u001e $Ё0＆lt; S

我还试图运行 DEBUG =压缩节点。来查看如何使用压缩。您可以查看下面给出的屏幕截图

我也尝试在server.js file =＆gt;

中使用压缩

var compression = require('compression');
app.use(compression());

并在 /server/middleware.json 中添加以下行：

"compression": {
  "params": { "threshold": 512 }
}

但它对我不起作用。

但是，当我使用以下代码正常调用它时，我知道它是如何工作的：

    var http = require('http');

var request = require('request'), zlib = require('zlib');

    var headers = {
      'Accept-Encoding': 'gzip'
    };

request({url:'https://rest.cricketapi.com/rest/v2/match/dev_season_2014_q3/balls/?access_token=2s151429438441649s96119828918*****', 'headers': headers})
    .pipe(zlib.createGunzip()) // unzip
    .pipe(process.stdout); //

http.createServer(function (req, res) {
    res.writeHead(200, {'Content-Type': 'text/html'});
    res.end('Hello World!');
}).listen(8080);

如果我在环回休息连接器中获得解决方案，那将是非常有用的。谢谢！

Answer 1

我瘦这个链接会帮助你...... Ryan Knell发布了这个答案

node.js - easy http requests with gzip/deflate compression

我们只需要添加＆＃34; gzip：true＆＃34;在我的请求中，因为请求已经支持

https://github.com/request/request

Answer 2

终于得到了我的问题的解决方案：我创建了模型： /common/models/cricketapi.js 并编写以下代码：

'use strict';

module.exports = function(Cricketapi) {

// Ball By Ball API: 
// @params: access_token and match_key

Cricketapi.ballbyball = function(access_token, match_key, cb){
    var request = require('request');

    request(
        { 
            method: 'GET',
            uri: 'https://rest.cricketapi.com/rest/v2/match/'+match_key+'/balls/?access_token='+access_token,
            gzip: true
        },
        function (error, response, body) {
          cb(null, JSON.parse(body));
        }
      )
};

Cricketapi.remoteMethod (
    'ballbyball',
    {
      http: {path: '/ballbyball', verb: 'get'},
      accepts: [
          {arg: 'access_token', type: 'string', http: { source: 'query' }},
          {arg: 'match_key', type: 'string', http: { source: 'query' }}
        ],
      returns: {arg: 'response', type: 'Object'}
    }

  );
};

我得到以下输出：

我们需要添加＆＃34; gzip：true＆＃34;在请求中。

Loopback API：响应陷入压缩

2 个答案: